What does alveolar mean?
The definition of alveolar
Al”ve*o*lar, a.
Etym: [L. alveolus a small hollow or cavity: cf. F. alvéolaire.] (Anat.)

Of, pertaining to, or resembling, alveoli or little cells, sacs, or sockets. Alveolar processes, the processes of the maxillary bones, containing the sockets of the teeth.